For those asking for a Walk-through and after starting the game over several times, I can say at the current state of this version of the game there really is no need for 1. IF, however, there is something specific (opportunity) that you are wanting to know how to either unlock or finish, then please let me know and I will be more than happy to part with the information. I have already taken a pre-existing WT for the original BB game and started altering it to fit this version but after finishing that task there just isn't much there for a real WT at this point.
I will say this about the whole money aspect and 1 of the other commenters made the suggestion and it really is a brilliant 1. Firstly, there are some conversations that you must have as they are unavoidable like Lisa's school and swimsuit and Alice's Blog and Dress. Those 4 conversations must be started to the point that you get notified that there is a new opportunity, but other than those 4 there is nothing you need to worry about until you get the Dress and Swimsuit BEFORE Eric takes them shopping to get them. Now back to the money talk and the brilliant idea that was given. After day 1 breakfast convo you need to go to your room, inspect the boxes, go to the living room to look for the camera, go back to your room and use the laptop to search for info on cameras, shop online for the web standards book and buy it (You start with $150 and book is only $100), wait for book to be delivered, every morning at 8 talk to mom to ask for money "I'm ashamed..." and make sure you get all the chores so that you get all the money you can (but don't spend it yet), once the book is delivered make sure to read it and then every 4 hours until it is done (read it 5 times), the moment that you finish reading the book the last time then go to your laptop to start the website and by now IF you have done everything right you should be able to setup the site ($100) and be able to buy 2 advertisement packs, then knowing you need to get the dress and swimsuit before Eric takes them shopping you go stand in the living room and just make time pass by (you will need to do the dishes, watch tv with Mom and Alice, occasionally Mom and Eric (watch as long as you can), and go to bed at midnight, in the morning go to your laptop, open the site, collect your money, buy as many advertisements as you can, and then repeat the day before, Get money from Mom, waste time in the living room, etc... and by Tuesday the week of the shopping trip you should be able to Buy at least the Dress or the Swimsuit and be able to buy the other 1 on Wednesday. From here on out the rest of the opportunities are straight forward.
I apologize for the TL;DR